(Solved): 3) The triangular plate, having a 90 degree angle at A, supports the load P = 170 lb as shown. Find ...

3) The triangular plate, having a 90 degree angle at A, supports the load P = 170 lb as shown. Find the equations of equilibrium that would be used to find the tension in cables BD and CD and the reaction forces at the ball-and- socket joint at A. You do not need to find the actual values of the tensions and reactions, just the equations. (15 points) B 4 ft An 4 ft 6 ft C 2 ft